6-Fluoro-3-nitro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
2-Fluoro-5-nitro-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
3-Fluoro-5-(fluoromethyl)-2-nitro-4-(trifluoromethoxy)pyridine
2-Fluoro-3-nitro-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine